I switched from a Seasonic PRIME snow silent platinum with 650 watts to an Enermax MaxTytan power supply 800W titanium. The Enermax became it because it was available. Actually wanted one of the Corsair Premiums.
I exchanged mainly because the 650W power supply was partially at the puke limit. I didn't have a power loss or anything, but I wanted a little more "air"
Chatiw .
If you don't have an absolute crap power supply, it's imho not worth buying a new one. As I said, the beeping is not gone for me, but just a little less noticeable - the housing is closed and stands a little over 1 meter away - if I were to sit right next to it it would be unbearable.
omegle
If you still have a power supply lying around you can try it out to see if you can hear a difference. Or you stick the card with a buddy or something. come in and try it.